基础太差，代码搞不定了，得不到值，特来

基础太差，代码搞不定了，得不到值，特来求助
自己写了个自定义分页控件如下
  public int recordcount;
  public int size;
  public int curPage;
  public string condition;
  protected void Page_Load(object sender, EventArgs e)
  {
  int allpage;
  if (recordcount % size == 0)
  allpage = recordcount / size;
  else
  allpage = recordcount / size + 1;
  if (allpage == 0)
  allpage = 1;
  //获取链接地址
  if (curPage != 1)
  {
  this.hplback.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + Convert.ToString(curPage - 1)+condition;
  this.hplfirst.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=1"+condition;
  }
  if (curPage != allpage)
  {
  this.hplnext.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + Convert.ToString(curPage + 1)+condition;
  this.hplend.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + allpage+condition;
  }
  }

在aspx页里使用ID为aspnetpage
不查询分页，还行，一查询分页就报：
行 19: {
行 20: int allpage;
行 21: if (recordcount % size == 0)

aspx自带的CS代码如下：
  private int size = 2;
  private int curPage;
  static string sql;
  protected void Button1_Click(object sender, EventArgs e)
  {
  sql = "select * from food where name like '" + TextBox1.Text.ToString() + "'";
  DataTable dt = ddw.dt(sql);
  if (Request.QueryString["Page"] != null)
  curPage = Convert.ToInt32(Request.QueryString["Page"]);
  else
  curPage = 1;
  AspNetPage.recordcount = dt.Rows.Count;
  AspNetPage.size = 2;
  AspNetPage.curPage = curPage;
  }

------解决方案--------------------------------------------------------
public int recordcount; 
public int size; 
这些变量的值丢了吧
------解决方案--------------------------------------------------------
页面回发的时候变量值没保存起来
这样声明:

C# code

public int recordcount{ get{ return ViewState["recordcount"]==null?0:(int)ViewSate["recordcount"];}set{ ViewState["recordcount"] = value;}}
------解决方案--------------------------------------------------------
调用控件的页面在page_load里加if(!page.ispostback){。。。}没有？
------解决方案--------------------------------------------------------
    public int recordcount;  
   public int size;  
   public int curPage;  
   public string condition;

  
问题在这里，页面一刷新，值全清了
------解决方案--------------------------------------------------------
lz那样写，怎么都不好弄

可以把那些需要接收调用时赋值的变量改成session
加载页面的时候首先给session赋值